Window-screen.



T. BAKER.

WINDOW SCREEN.

APPLICATION FILED MAY 10, 1912.

Patented 0ct.29, 1912.

- 2 SHBETSSHEET 14 WITNESSES T. BAKER.

WINDOW SCREEN.

APPLICATION FILED MAY 10, 1912.

1,042,380. Patented 001;.29,1912.

2 SHEETSSHEBT 2. F q '3-.

WITNESSES: INVENTOR into slots 25, communicating with the aperturc- 26, which contains the rod or extens sion 20. The free ends of the actuating 1evers 22 are preferably curved outwardly from the surface of the screen-frame, so as to provide easy manipulation thereof; which manipulation consists in pressing the said free ends together, and thereby drawing the plungers 16 against the action of the springs 19, out of the apertures or keepers 15.

The lower sash 12 is provided with an aperture 27, extending upwardly, from its bottom surface and with a horizontal bore extending from its inner surface through the upwardly extending aperture 28. Into these apertures 27 and 28 is fitted a lock mechanism for securing said sash to the lower frame 1 1; this locking mechanism consisting of a shank 29, seated in the aperture 28, and being provided with a knob 29, by which it may be turned. The knob 29 is also provided with a frusto-conical boss 30 which has its hearing within the aperture 31 of the plate 32, said plate being secured to the sash 12, as clearly indicated. By means of this plate the shank 29 is prevented from being moved longitudinally, but may be rotated, through the-medium of the knob 29, the boss 30 being rotated with- The shank 29 is also provided with a rectangular section 33, fitted within a rectangular opening 34, through a hooked bolt or looking member 35, depending from the shank 29 and having its hooked end 36 in position for engaging a plate or keeper 37, secured to the upper surface or edge of the frame 14:, said frame being apertured at 38, for receiving said hooked end. From an observation of the construction illustrated in Fig. 5, it will be seen that this locking mechanism may be properly fitted to window sashes of different thickness, the rectangular portion 33 being movable laterally within the hooked bolt 35 and therefore not being in position to interfere with the bearings in which the cylindrical and conical. portions of the shank are seated. The outer sash is provided with a locking mechanism similar to that described for the inner sash; the only difference consisting in in the aperture 31.

the-reversal and inversion of the several ele-' ments thereof.

In practice, when it is desired to raise the lower sash indepemlently of the screen, the knobs 29 are turned, for releasing the hooks 35 from the keepers 3T, whereupon the sash may be raised, through the instrumentality of the knobs 29, independently of the screen .11; however, if. it is desired to raise the screen with the .tlSll, the actuating levers fi2 may be grasped and pressed together,

whereby the plunger-s 16 are released from the aperti'ircs 15, and the screen and sash. may then be raised through the instrumentality of the lovers and locked in posttion, by allowing the plungers 16 to engage with other apertures 15, above the lower ones. If it is desired to lower the outer sash, independently of the upper screen frame, the knobs 29 scribed for the inner sash; but if it is desired to lower the upper screen together with the outer sash,'the said screen and sash are allowed to remain in locked relation with each ,other, the lovers 22 thereof being pressed together and pulled down, until the desired keepers 15 have been reached and engaged by the plungers 16, as described for the lower frame.

are employed, as de- It will be seen that I have provided an guides, a screen-frame,'slidably 'seated in the guides and adapted to be moved into the aperture of the frame, and means for locking the screen-frame into eitherof several alternative positions and thereby supporting the window sash.

2. In combination, an aperturcd window frame having sash guides in registration with the aperture thereof, window sashes slidably seated in the guides, window screens slidably seated in the guides and adapted to be moved upward into said aperture and locked in fixed relation to the window frame and means for removably securing the window sash to the screen so that said sash is supported in fixed relation to the window frame through the medium of the screen.

3. In combination, a window frame provided with sash guides and with an aperture under certain of the sash guides and with an aperture over other of the sash guides, sashes slidable in the guides, screen frames adapted to he slid. into and out of the sash guides and apertures res mctively, means for locking the screen-frames within said apertures-,"and means for locking the sashes to the iespectiye screen-frames, and thereby effectually rendering the Window inaccessible from the outside.

4. In combination, a window frame pro vidcd with sash guides and with upper and lower apertures respectively, sashes sl'idably seated in the guides, screen frames slidably seated in the guides and adapted to be slid into and out of the apertures n-s wctivcly, means for locking the SL'Jfti'llr; in open po-- sition, and means for looking the sashes to the screens, and thereby rendering the window. inaccessible from without.

In combination,"a window frame provided with sash guides, a sash slidablv seated in the guides, a'screen-frame slidably seated in the guides and adapted to be locked to the sash by means of a hooked bolt inserted in registering apertures in the sash and frame respectively, said hooked bolt having a rectangular aperture therethrough, a shank having a rectangular section slidably and non-rotatably seated in the bolt, means whereby the shank may be rotated and means for securing the shank in fixed relation to the bolt, said rectangular aperture through the bolt extending beyond the vertical edges of the rectangular ortion of the shank, whereby the bolt and s ank may be fitted to window sashes of different thicknesses without danger of the rectangular iortion of the shank interfering with the earings of said shank.

In combination, a window frame having apertured uides therein, a screen-frame slidably seated in the uides, horizontally slidable plungers carried by the frame and adapted to enter the a'ertures of the window frame, actuating evers pivotally and adjacently secured to the frame, and means connecting the actuating levers with the plungers, whereby the latter may be withdrawn from the apertures of the window frame through the instrumentality of said actuating levers.

In testimony whereof I have signed my name tothis specification in the presence of two subscribing witnesses.

THOMAS BAKER.

Witnesses:

T. G. MERRICK, EDWARD MURPHY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

. Washington, D. 0. 

